Noctua has sent us their newest case fan for us to review, the NF-S12B FLX. Succeeding the vastly successful NF-S12, the NF-S12B is a next generation quiet fan featuring Noctua's advanced SCD2 technology as well as a new blade geometry with Bevelled Blade Tips that improves its predecessor's airflow efficiency by up to 10%. Read on to see how this new fan performs.